Some of the Navy’s futuristic weapons sound like something out of “Star Wars,” with lasers designed to shoot down aerial drones and electric guns that fire projectiles at hypersonic speeds. That future is now.

The deputy commander of U.S. nuclear forces, Vice Adm. Tim Giardina, was notified Wednesday that he has been relieved of duty amid a military investigation of allegations that he used counterfeit chips at an Iowa casino, the Navy said.